When Cassandra uses the remote, she ignites the gas that was turned on before and surprises the bad guys. However, due to added odorizers, everybody in the room should have smelled the gas way before and reacted accordingly.
Red says that Ruck is rumored to have survived in The Gibson Desert on eucalyptus and honeydew ants. Eucalyptus leaves are toxic to humans, and there is no ant species there called the honeydew ant.